It is my understanding that PTSD, whether from combat, abuse, disaster or civilian service. Does not cause people to become violent. It is also my understanding that anyone who experiences the aforesaid psychological trauma, may develop PTSD. So just as a pacifist may develop this disorder, so can a murderer. That such a person who commits a violent offence, was capable of it before they developed the disorder. Just as a person who wasn't capable of such action, can no more commit such action post onset of PTSD. Am I misinformed?